Revert "Merge pull request #27718 from kamipo/remove_internal_public_methods"

This reverts commit 39c77eb1843f79925c7195e8869afc7cb7323682, reversing
changes made to 9f6f51be78f8807e18fc6562c57af2fdbf8ccb56.

6 files changed, 18 insertions, 13 deletions

diff --git a/activerecord/CHANGELOG.md b/activerecord/CHANGELOG.md
index 4b8e8f555d..85a14e5966 100644
--- a/activerecord/CHANGELOG.md
+++ b/activerecord/CHANGELOG.md
@@ -2,11 +2,6 @@
 
     *Ryuta Kamizono*
 
-*   Remove `initialize_schema_migrations_table` and `initialize_internal_metadata_table`
-    internal public methods.
-
-    *Ryuta Kamizono*
-
 *   Place generated migrations into the path set by `config.paths["db/migrate"]`.
 
     *Kevin Glowacz*
diff --git a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
index 95725cd883..1bdc086380 100644
--- a/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
+++ b/activerecord/lib/active_record/connection_adapters/abstract/schema_statements.rb
@@ -1008,6 +1008,16 @@ module ActiveRecord
         end
       end
 
+      # Should not be called normally, but this operation is non-destructive.
+      # The migrations module handles this automatically.
+      def initialize_schema_migrations_table
+        ActiveRecord::SchemaMigration.create_table
+      end
+
+      def initialize_internal_metadata_table
+        ActiveRecord::InternalMetadata.create_table
+      end
+
       def internal_string_options_for_primary_key # :nodoc:
         { primary_key: true }
       end
diff --git a/activerecord/lib/active_record/migration.rb b/activerecord/lib/active_record/migration.rb
index 339332a60d..31c2397bc9 100644
--- a/activerecord/lib/active_record/migration.rb
+++ b/activerecord/lib/active_record/migration.rb
@@ -1107,8 +1107,8 @@ module ActiveRecord
 
       validate(@migrations)
 
-      ActiveRecord::SchemaMigration.create_table
-      ActiveRecord::InternalMetadata.create_table
+      Base.connection.initialize_schema_migrations_table
+      Base.connection.initialize_internal_metadata_table
     end
 
     def current_version
diff --git a/activerecord/lib/active_record/schema.rb b/activerecord/lib/active_record/schema.rb
index 5104427339..7a2bc9c8af 100644
--- a/activerecord/lib/active_record/schema.rb
+++ b/activerecord/lib/active_record/schema.rb
@@ -48,7 +48,7 @@ module ActiveRecord
       instance_eval(&block)
 
       if info[:version].present?
-        ActiveRecord::SchemaMigration.create_table
+        initialize_schema_migrations_table
         connection.assume_migrated_upto_version(info[:version], migrations_paths)
       end
 
diff --git a/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb b/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb
index 605baa9905..fa54aac6b3 100644
--- a/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb
+++ b/activerecord/test/cases/adapters/mysql2/schema_migrations_test.rb
@@ -16,7 +16,7 @@ class SchemaMigrationsTest < ActiveRecord::Mysql2TestCase
       table_name = ActiveRecord::SchemaMigration.table_name
       connection.drop_table table_name, if_exists: true
 
-      ActiveRecord::SchemaMigration.create_table
+      connection.initialize_schema_migrations_table
 
       assert connection.column_exists?(table_name, :version, :string, collation: "utf8_general_ci")
     end
@@ -27,7 +27,7 @@ class SchemaMigrationsTest < ActiveRecord::Mysql2TestCase
       table_name = ActiveRecord::InternalMetadata.table_name
       connection.drop_table table_name, if_exists: true
 
-      ActiveRecord::InternalMetadata.create_table
+      connection.initialize_internal_metadata_table
 
       assert connection.column_exists?(table_name, :key, :string, collation: "utf8_general_ci")
     end
diff --git a/activerecord/test/cases/migration_test.rb b/activerecord/test/cases/migration_test.rb
index c728cc9669..4edb807bbb 100644
--- a/activerecord/test/cases/migration_test.rb
+++ b/activerecord/test/cases/migration_test.rb
@@ -43,10 +43,10 @@ class MigrationTest < ActiveRecord::TestCase
     ActiveRecord::Base.table_name_prefix = ""
     ActiveRecord::Base.table_name_suffix = ""
 
-    ActiveRecord::SchemaMigration.create_table
-    ActiveRecord::SchemaMigration.delete_all
+    ActiveRecord::Base.connection.initialize_schema_migrations_table
+    ActiveRecord::Base.connection.execute "DELETE FROM #{ActiveRecord::Migrator.schema_migrations_table_name}"
 
-    %w(things awesome_things prefix_things_suffix p_awesome_things_s).each do |table|
+    %w(things awesome_things prefix_things_suffix p_awesome_things_s ).each do |table|
       Thing.connection.drop_table(table) rescue nil
     end
     Thing.reset_column_information